Nfkb1 Gene Summary [Mouse]

Enables several functions, including RNA polymerase II cis-regulatory region sequence-specific DNA binding activity; identical protein binding activity; and transcription coregulator activity. Involved in several processes, including B cell receptor signaling pathway; cellular response to virus; and regulation of gene expression. Acts upstream of or within several processes, including cellular response to tumor necrosis factor; regulation of gene expression; and response to muscle stretch. Located in cytosol. Part of NF-kappaB p50/p65 complex and transcription regulator complex. Is active in nucleus. Is expressed in several structures, including alimentary system; brain; genitourinary system; hemolymphoid system; and integumental system. Human ortholog(s) of this gene implicated in several diseases, including HTLV-1-associated myelopathy/tropical spastic paraparesis; carcinoma (multiple); common variable immunodeficiency 12; melanoma; and prostate cancer. Orthologous to human NFKB1 (nuclear factor kappa B subunit 1). [provided by Alliance of Genome Resources, Jul 2025]

Details

Type
Protein Coding
Official Symbol
Nfkb1
Official Name
nuclear factor of kappa light polypeptide gene enhancer in B cells 1, p105 [Source:MGI Symbol;Acc:MGI:97312]
Ensembl ID
ENSMUSG00000028163
Bio databases IDs NCBI: 18033 Ensembl: ENSMUSG00000028163
Aliases nuclear factor of kappa light polypeptide gene enhancer in B cells 1, p105
Synonyms CVID12, EBP-1, KBF1, NF-kappa-B, NF-kappa-B1, Nf kappa b DNA binding subunit, NF-kappabeta, NF KAPPA B subunit P50, NF-kB, NFKB subunit P105/P50, NF-κ-B, NF-κ-B1, Nf κ b DNA binding subunit, NF κ B subunit P50, NUCLEAR FACTOR KAPPA B DNA binding subunit, nuclear factor kappa B subunit 1, nuclear factor of kappa light polypeptide gene enhancer in B cells 1, p105, nuclear factor of κ light polypeptide gene enhancer in B cells 1, p105, NUCLEAR FACTOR κ B DNA binding subunit, nuclear factor κ B subunit 1, p105 Nfkb, p50 NF-kappaB, P50 nf κ b, P50/P105
Species
Mouse, Mus musculus
OrthologiesHumanRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in mouse Nfkb1 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • Death domain
  • transcription regulator
  • Ankyrin repeats (many copies)
  • cell penetrating signal sequence
  • Rel homology dimerization domain
  • heat shock protein binding
  • transcription cofactor
  • transcription activation domain
  • transcription factor binding
  • chromatin binding
  • identical protein binding
  • Ankyrin repeat
  • RNA polymerase II transcription factor activity, sequence-specific DNA binding
  • ankyrin repeats
  • glycine rich domain
  • RNA polymerase II transcription regulatory region sequence-specific binding transcriptional activator activity
  • dimerization domain
  • DNA binding domain
  • nucleic acid binding
  • IPT
  • actinin binding
  • signal response domain
  • nuclear localization sequence
  • Ankyrin repeats (3 copies)
  • protein binding
  • sequence-specific DNA binding
  • DNA binding
  • PEST domain
  • RNA polymerase II transcription regulatory region sequence-specific binding transcriptional repressor activity
  • binding protein
  • double-stranded DNA binding
  • N-terminal sub-domain of the Rel homology domain (RHD)
  • Death Domain Superfamily of protein-protein interaction domains
  • transcription factor activity

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • primary open-angle glaucoma
  • diarrhea
  • neoplasia
  • COVID-19
  • cerebral hemorrhage
  • Huntington disease
  • prostate cancer
  • fibrosis
  • interstitial fibrosis
  • rheumatoid arthritis
regulated by
regulates
role in cell
  • cell viability
  • migration
  • expression in
  • phosphorylation in
  • growth
  • activation in
  • cell death
  • formation in
  • production in
  • cellular infiltration by

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Nucleus
  • nuclear fraction
  • secretory granule lumen
  • Cytoplasm
  • Extracellular Space
  • Mitochondria
  • cytosol
  • mitochondrial matrix
  • nucleoplasm
  • nuclear matrix
  • chromatin
  • cytoplasmic fraction
  • cytosolic fraction

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the mouse Nfkb1 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • response to cytokine stimulus
  • positive regulation of transcription initiation from RNA polymerase II promoter
  • transcription from RNA polymerase II promoter
  • JNK cascade
  • positive regulation of transcription from RNA polymerase II promoter
  • negative regulation of transcription from RNA polymerase II promoter
  • inflammatory response
  • negative regulation of calcidiol 1-monooxygenase activity
  • cellular response to interleukin-6
  • positive regulation of transcription, DNA-dependent
  • apoptotic process
  • negative regulation of vitamin D biosynthetic process
  • cellular response to dsRNA
  • cellular response to stress
  • cellular response to tumor necrosis factor
  • response to muscle stretch
  • negative regulation of protein metabolic process
  • cellular response to nicotine
  • B cell receptor signaling pathway
  • positive regulation of miRNA metabolic process
  • mammary gland involution
  • negative regulation of inflammatory response
  • positive regulation of canonical Wnt receptor signaling pathway
  • NIK/NF-kappaB cascade
  • I-kappaB kinase/NF-kappaB cascade
  • positive regulation of hyaluronan biosynthetic process
  • regulation of transcription from RNA polymerase II promoter
  • negative regulation of gene expression
  • cellular response to mechanical stimulus
  • cellular response to lipopolysaccharide
  • negative regulation of apoptotic process
  • innate immune response
  • cellular response to interleukin-1
  • negative regulation of cholesterol transport
  • negative regulation of interleukin-12 production
  • positive regulation of macrophage derived foam cell differentiation
  • positive regulation of lipid storage

Cellular Component

Where in the cell the gene product is active
  • specific granule lumen
  • extracellular region
  • chromatin
  • nucleoplasm
  • transcription factor complex
  • nucleus
  • cytoplasm
  • mitochondrion
  • NF-kappaB p50/p65 complex
  • cytosol
  • secretory granule lumen
  • I-kappaB/NF-kappaB complex

Molecular Function

What the gene product does at the molecular level
  • identical protein binding
  • actinin binding
  • RNA polymerase II core promoter proximal region sequence-specific DNA binding
  • RNA polymerase II regulatory region sequence-specific DNA binding
  • transcription regulatory region sequence-specific DNA binding
  • RNA polymerase II transcription regulatory region sequence-specific DNA binding transcription factor activity involved in positive regulation of transcription
  • RNA polymerase II transcription regulatory region sequence-specific DNA binding transcription factor activity involved in negative regulation of transcription
  • chromatin binding
  • sequence-specific DNA binding RNA polymerase II transcription factor activity
  • sequence-specific DNA binding transcription factor activity
  • transcription cofactor activity
  • protein binding

Gene-Specific Assays for Results You Can Trust

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